test cases for list and map in deep nested tuple schemas

[ghost]

New test cases for Py -> SPL with schema that contain list or map attribute at a deep level of nesting tuples.

cd <jour repo>/test/python/topology

for t in \
_test_py_source_tuple_map_nested_tuple_spl_sink \
_test_py_source_tuple_tuple_map_nested_tuple_spl_sink \
_test_py_source_tuple_list_nested_tuple_spl_sink \
_test_py_source_tuple_tuple_list_nested_tuple_spl_sink
do 
echo "======================> $t"
python3 -u -m unittest test2_namedtuple.TestNamedTupleSource.$t
done

Test cases currently fail (that's why prefixed wit '_')